Home / 28,983.13-39,996.71-16,407.88

Finding the Fourth Proportional to 28,983.13, 39,996.71 and 16,407.88

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Solution

The fourth proportional to 28,983.13, 39,996.71 and 16,407.88 is: 22,642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.13 : 39,996.71 = 16,407.88 : x
  2. Step 2: Convert to fraction form
    28,983.13/39,996.71 = 16,407.88/x
  3. Step 3: Cross multiply
    28,983.13x = 39,996.71 × 16,407.88
  4. Step 4: Simplify right side
    28,983.13x = 656,261,218.07
  5. Step 5: Solve for x
    x = 656,261,218.07/28,983.13
  6. Step 6: Final answer
    x = 22,642.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.